feat: Add direct support for volume attachments

[tiagomlalves]

Description

Add ebs_volume_attachments input variable and logic to automatically attach previously created volumes when starting instances.

Motivation and Context

This change simplifies the creation of immutable servers when using Terragrunt with this module enabling the following configuration:

dependency "testdata_storage" {
    config_path = "../../storage/testdata"
}

inputs = {
    ami           = "ami-xxx"
    instance_type = "t3a.micro"

    ebs_volume_attachments = [
        {
            device_name ="/dev/xvdb"
            volume_id = dependency.testdata_storage.outputs.id
        }
    ]

    ...
}

Breaking Changes

no

How Has This Been Tested?

• [x] I have updated at least one of the examples/* to demonstrate and validate my change(s)
• [ ] I have tested and validated these changes using one or more of the provided examples/* projects

• [ ] I have executed pre-commit run -a on my pull request

[tiagomlalves]

Hi, this is just a first attempt showing the changes I proposed in https://github.com/terraform-aws-modules/terraform-aws-ec2-instance/issues/276 Looking forward for feedback about if this is the right approach or not for simplifying Terragrunt configurations.

[github-actions[bot]]

This PR has been automatically marked as stale because it has been open 30 days with no activity. Remove stale label or comment or this PR will be closed in 10 days

[github-actions[bot]]

This PR was automatically closed because of stale in 10 days

[github-actions[bot]]

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